RECENT PROGRESS IN COWPEA BREEDING RESEARCH AT IITA                Ousmane Boukar             Cowpea breeder, IITA Kano   ...
OUTLINE•   Introduction•   Cowpea Production Constraints•   Breeding Goal•   Achievements from Core Activities•   Achievem...
INTRODUCTION     • Cowpea, Vigna       unguiculata, is an       important grain legume:     • -generates a source of      ...
Some Characteristics of Cowpea• Adapted to poor soil fertility and very little  rainfall• shade tolerant (intercropping sy...
Main utilization of Cowpea• Young leaves , green pod and fresh grain  as vegetable• Grain as moi-moi, kosaiand bean cake• ...
AVERAGE DATA 97-07                                       TOTAL COWPEA PRODUCTION                                          ...
Yield comparison                World Average Best Yield                                        Africa Best Yield         ...
COWPEA PRODUCTION   CONSTRAINTS                    www.iita.org
1.INSECTS                                  MarucaAphid                 Thrip        S.M              C.F-MT        www.iit...
S.M                        BruchidPod sucking bug                  S.M             www.iita.org
2. Diseases               Bacterial diseases                                        Pustule      BlightB.O                ...
Viral diseases             CSMVCGYMV                                   CAbMV            CYMVSource: Cowpea Pests and Disea...
Fungal diseasesAnthracnose         Rust                                                                        Smut       ...
3. Parasitic weeds                             AlectraStriga gesnerioides                                       www.iita.org
4. Nematodes                       5. DroughtSource: UCR                 UCR              6. Phosphorus         www.iita.org
BREEDING GOAL• To develop improved lines with:  – high yield potential,  – tolerance/resistance to both biotic and   abiot...
• Development of new cowpea lines with  a range of  – maturity (extra-early, early, medium, late)  – plant type (erect, se...
CORE BREEDING ACTIVITIES                           www.iita.org
Germplasm characterization      A systematic evaluation of        the germplasm accessions        for the identification o...
Cowpea collection origin: + 15 113 accessions.71% collected in Africa                           www.iita.org
MAIN OBJECTIVE• Identify additional sources of  resistance genes  – Introgression of these genes into    existing improved...
IT 84S- 2049                                                                        T Vu - 15636                          ...
PRELIMINARY FINDINGS                       Minimum   MaximumFirst flower (d)         26        10050% Flowering (d)       ...
Number entries for each maturity group900                 836800700600                            521        5255004003002...
Number of disease free accessions2000             1791180016001400   1251                                   126912001000 8...
SEGREGATING POPULATIONS• Parental germplasm selection• About 200 crosses and backcrosses  annually• Management of segregat...
INITIAL EVALUATION TRIAL• F6-F7 group according to maturity, seed  type• About 50 lines annually into extra early,  early,...
• Evaluated in single replication in 3  locations  – Samaru in the NGS (1000 mm)  – Minjibir in the SS (700 mm)  – Toumnia...
PRELIMINARY VARIETAL TRIALS• Promising lines from IETs:  – Extra-early, Early, Medium and Late• 40 lines each• 3-4 replica...
Number of entries in PVT              2007- 2009Trials   2007      2008      2009Early     16        60        25Medium   ...
ADVANCED VARIETAL TRIAL• Promising lines from PVT:  – Extra-early, Early, Medium and Late• 25 lines each• 3-4 replications...
Number of entries in AVT                 from 2007-2009Trials         2007      2008       2009Extra early     20        2...
Mean Grain Yield of extra early promising        cowpea breeding lines in four locationsVariety        Minjibir Samaru Iba...
Performance of extra early promising breeding               lines evaluated at Toumnia, 2008Variety      Grain Fodder D95%...
Performance of extra early promising lines                           evaluated at Samaru 2008Variety        Grain D95%PM V...
Mean Grain Yield of early promising cowpea              breeding lines at four locations 2008Variety             Minjibir ...
Grain yield of medium maturing cowpea breeding               Lines evaluated at four locations 2008Variety          Minjib...
Grain Yield of promising late maturing               Cowpea breeding lines at 4 locations in 2008Variety          Minjibir...
Performance of promising late maturing                   Breeding lines at Toumnia 2008Variety         Grain    Fod      D...
Performance of promising late maturing                          Breeding lines at Samaru 2008Variety       Grain Fodder B....
Performance of promising late maturing                           Breeding lines at Minjibir 2008Variety       Grain    Fod...
Performance of promising late maturing                   Breeding lines at Ibadan 2008Variety         Grain    Fodder   D5...
COWPEA INTERNATIONAL TRIALS• Promising lines from AVT:  – Extra-early, Early, Medium and Late• 15-20 lines each• Sets dist...
Number of entries in CIT            from 2007-2009Trials    2007      2008       2009CIT 1      15        15         15CIT...
COWPEA BREEDING PROJECTS                           www.iita.org
TROPICAL LEGUME II• Objective 3:  Enhancing cowpea productivity and production   in drought prone areas in Sub-Saharan Afr...
Activity 3.1: Test existing cowpealines for their drought tolerance• Milestone 3.1.1Fifty elite cowpea lines with resistan...
Best performing drought tolerant lines          1st planting date                 2nd planting dateVariety             Gra...
High fodder yielding lines under drought                Fodder                Yield          • Farmers in droughtVariety  ...
• No significant differences for bacterial blight and  virus incidence and severity under terminal  drought conditions.• F...
FPVS sub-activity                      Locations           GenderDate       LGA        Village          Male Female Total3...
RESULTS• All the 16 lines were selected at least once in each  replication except IT97K-819-118 which was not  selected in...
Farmers     % Farmers selecting inVariety           #          %        3 rep          2rep    1 rep      YIELDIT99K-216-2...
First Reason to select a varietyCHARACTERISTICS         Number of farmers     PercentageGrain yield                       ...
FUTURE BREEDING ACTIVITIES                         www.iita.org
PROPOSED BREEDING PROGRAM           FOR THE NEXT 2 TO 3 YEARS• Target traits  – Insect resistance:     • Aphid (Aphis crac...
– Parasitic weeds  • Striga resistance  • Alectra resistance– Drought tolerance  • TL II  • TL I (phase 2?)– Specific bree...
OUTLINE OF RESEARCH ACTIVITIES• Germplasm Characterization• Identification and Validation of sources of  resistance• Cross...
CONCLUSION• Cowpea has numerous biotic and abiotic  production constraints• Some progress has been achieved• Future progra...
Acknowledgement• IITA Management   • Mr. E. Makeri and                      CBU staff• Dr. D. Chikoye• Dr. C. Fatokun    •...
www.iita.org
Upcoming SlideShare
Loading in …5
×

RECENT PROGRESS IN COWPEA BREEDING RESEARCH AT IITA

3,165 views

Published on

Cowpea Production Constraints,Breeding Goal,Achievements from Core Activities and Projects Activities,Proposed Activities for the next 2 years

Published in: Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
3,165
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
127
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

RECENT PROGRESS IN COWPEA BREEDING RESEARCH AT IITA

  1. 1. RECENT PROGRESS IN COWPEA BREEDING RESEARCH AT IITA Ousmane Boukar Cowpea breeder, IITA Kano www.iita.org
  2. 2. OUTLINE• Introduction• Cowpea Production Constraints• Breeding Goal• Achievements from Core Activities• Achievements from Projects Activities• Proposed Activities for the next 2 years• Conclusion www.iita.org
  3. 3. INTRODUCTION • Cowpea, Vigna unguiculata, is an important grain legume: • -generates a source of economic livelihood • - provides nutritional well- being for millions of farmers and urban consumers www.iita.org
  4. 4. Some Characteristics of Cowpea• Adapted to poor soil fertility and very little rainfall• shade tolerant (intercropping systems)• ground cover (moisture, weeds, soil erosion)• Induce suicidal germination of Striga hermonthica• Increase soil fertility (N fixation) www.iita.org
  5. 5. Main utilization of Cowpea• Young leaves , green pod and fresh grain as vegetable• Grain as moi-moi, kosaiand bean cake• Haulms as fodder for animal www.iita.org
  6. 6. AVERAGE DATA 97-07 TOTAL COWPEA PRODUCTION 3,865,257 t Nigeria Niger 7% 3% Burkina Faso 3% 2% Mali 4%38% Senegal 3% 2% Tanzania 8% Myanmar Kenya RDC Cameroon 14% Malawi 59% 41% Uganda OthersTOTAL AREA UNDER COWPEA 9,658,243 ha Source: FAOSTAT www.iita.org
  7. 7. Yield comparison World Average Best Yield Africa Best Yield Uganda Croatia Cameroon 4000 Trinidad 1000 Madagascar 3500 Serbia 900 Malawi Macedonia 3000 800 Nigeria SerbiaYield (kg/ha) 700 South Africa Yield (kg/ha) 2500 Palestiane 600 Congo 2000 Egypt 500 Burkina Faso Cyprus 1500 400 Swaziland Bosnia 1000 USA 300 Kenya Jamaica 200 Tanzania 500 Uganda 100 Mauritania 0 1 Sri Lanka 0 Mali 1 Countries Cameroon Senegal Philippines Countries Niger 1149.44 kg/ha 462.82 kg/ha Source: FAOSTAT www.iita.org
  8. 8. COWPEA PRODUCTION CONSTRAINTS www.iita.org
  9. 9. 1.INSECTS MarucaAphid Thrip S.M C.F-MT www.iita.org
  10. 10. S.M BruchidPod sucking bug S.M www.iita.org
  11. 11. 2. Diseases Bacterial diseases Pustule BlightB.O Source: Cowpea Pests and Disease www.iita.org
  12. 12. Viral diseases CSMVCGYMV CAbMV CYMVSource: Cowpea Pests and Disease www.iita.org
  13. 13. Fungal diseasesAnthracnose Rust Smut Pod rot Cercospora Leafspot Source: Cowpea Pests and Disease www.iita.org
  14. 14. 3. Parasitic weeds AlectraStriga gesnerioides www.iita.org
  15. 15. 4. Nematodes 5. DroughtSource: UCR UCR 6. Phosphorus www.iita.org
  16. 16. BREEDING GOAL• To develop improved lines with: – high yield potential, – tolerance/resistance to both biotic and abiotic stresses – grain characteristics preferred by consumers and producers www.iita.org
  17. 17. • Development of new cowpea lines with a range of – maturity (extra-early, early, medium, late) – plant type (erect, semi-erect, prostrate) – seed quality (color, texture, size) – disease/insect resistance – parasitic weed resistance (Striga, Alectra) – adaptability (drought, heat, moisture) www.iita.org
  18. 18. CORE BREEDING ACTIVITIES www.iita.org
  19. 19. Germplasm characterization A systematic evaluation of the germplasm accessions for the identification of useful genes for cowpea improvement - Core collection:1976 +99 - Mini core collection: 343 +15 Source: UCR www.iita.org
  20. 20. Cowpea collection origin: + 15 113 accessions.71% collected in Africa www.iita.org
  21. 21. MAIN OBJECTIVE• Identify additional sources of resistance genes – Introgression of these genes into existing improved lines – Creation of populations for the identification/validation of molecular markers www.iita.org
  22. 22. IT 84S- 2049 T Vu - 15636 T Vu - 8775 F ren ch B ean T Vu - 3947 T v u -Vu - 14875 - 21 T 8389 T Vu T Vu - 3389 U C R 4539 T 12968 T T T - 2971 T Vu R 5162 T Vu - TVu -6493-- 13965 - 12897 Vu Vu - 7798U Vu 193 U C B- - 3107# 7 C RVu10513 T Vu 1162 2449TVu - 10513 Vu T6644 - 9073 Vu- 3282 8072 VuVu T LVu--6643 T Vu- Vu -Vu - 12873 - 12923 T UTVuT1916 7290 C R T Vu -16269 T 5174 16253 TT13968 PI 13017 1 L L418979 T Vu30 - T Vu - B B 90 T Vu # T Vu -LB- 8014862 12565 IT 95M - 309- 1 T VuT16304 T Vu - 12802 - Vu -T Vu - 2322 T Vu - 14237 16237 2168 T Vu - 13958 IT 15694M 12-- 4823 15775 T Vu 58 C am ero o nelakh T Vu -95K- 1491 IT 95K - 1479 T Vu -T Vu - 10892 T T Vu - 9393Vu - 3657 Vu - 9391 9095 T 24- 125- B - 1 T VN u - 463 KIT 95M - 311 If e IT 98K - 205- 84557 B ro wn T Vu -4-1 20 T 499- 35- 5- Vx 396- IT Vu -- 558- 16465 ITT98K 437-1- 1- 124- 1 IT 97K -Vu- IT 98K - 1111-5 98K 15687 94K 499- 4 1 IT 99K 1 T VuT12804 - 3346 - Vu - 14248 ITIT 95M - 190 97K- 499- 38 - IT 97KIAR /8- 4- 5- T Vu - 14253 IT 93K - 2046 U C RT Vu T Vu - 2252 1656 15565164 IT 97K Vx- 3236 IT 96D - 610 IT T -Vu317 639 98K - - 14272 T 317- 12 T Vu - 16449 T Vu - 16278 10- 4- 1- 1 SASAQU E T Vu - 2968 SHB 46 C - 49- IT 00K -Vu - 1 T T 901- 6 IT 98KVu - 15639 - 498- Vy a Yacin e TT Vu - 3156 Vu - 1886 IT 00K -Vuaala Vu - 819- 132 T 898-ITT 5 97K Ap ag b - 15610 16486 T T T12710 T Vu -- 2845 Vu 2398 TTVu - 3076 Vu - 3043 Vu - Vu - 16220 SH -B 86- 3 9- 1- 1 B 50- 17- IT 85F - 3139 U C R 24 524- B C B 27 K Vx61- - 4545 T Vu -1- 1 4535 IT 03K - 378- Vu T4 T VuVu -VuC BT Vub2500 n - g reen T VuVu-9676BT Vu -ey Scarlet T-- 94861811 Pet it21 16514 9749 T - am T T Vu9508 5 Early e- T Vu - 6824 TVuT9492 - 9506 T T Vu 9557 Vu -- 9651 1715 ITVu - 53 693- 2 IT 93K - T 97K - 819- 118 T VuVu2418 Vu -- 9474 TT -Vu-4711 Vu - Vu - 9522 9516 T 9620 T 2723 -9556 T Vu--15500 13979 C R SP IT 98D - 1399 T Vu-ieb e L oN N 7- IT 99K - 7- 21- 2- 2 T9468 - T Vu Vu - TT Vu10835 e 421- Vu - 6947 - - 241- 2 ero - n ieb ri 6782 C amTVuo889 29 Vu - - 10952 IT 99K T 25 IT 99K 216- 44 T Vu -4760 - 3830 T Vu T Vu - 15861 4328 T VuVu - 15860 - 4761 T Vu - K Vx T Vu -8934 9031 T VuT2606 T 12526 T Vu - 2280 - 10408 - Vu Vu - T Vu - 3969 Vu - 6994 T T Vu - 16528 T T Vu - -8703804 -10559 - 1124 T VuTD T6968 TVuan ila 5498 Vu--- 10687 - Vu - T Vu T4030 T- 4696 T 10973 -- Vu T -- T VuVuVu T Vu - 3745 T -T-T7559 Vu - 3817 T Vu578 Vu 16251 T VuVuVu -6959 8123 15315 16461 T Vu Vu3736- 15251 -VuTT 5307 T 10005 T Vu Vu - 2027 T Vu - 7991 Vu T- 58- 53 T Vu - 5018 4984 T Vu - 4669 T VuVu - 5957 -T Vu - 4923 15591 TVu - v it a- T Vu - -- 8883 T Vu - 523 T Vu 8656 T Vu- Vu - - T Vu - 14992Su-54662 TVu u144066966 T Vu -Tru Vu15037 T Vu 4943 VuT Vue14970 TM o- -14345 - GoTT m5874 TTT VuL5473 Vu Vu -o cal TTT Vu5415 T - - 5609 14949 TT Vu8612 T Vu -7382 Vu - 8702 TVu -143464783 T Vu - 1036210545 T Vurid574808 T 14401 - 14539 58-14393 T Vu - 15299Vu---- 5500 Vu 3965 149715721 Vu -- 5828 T T Vu8671 T Vu 8713 - - 16368 TVu - 16403 Vu T Vu - 8631 Vu - 8622 T Vu - 8877 - 408 T Vu TT Vu969 - 8641 T Vu -- 7625 7614 T Vu Vu 7325 T Vu--- 8812 T Vu - 8923 Vu - 9259 TTVu-Vu --- 9237 T Vu -T15878 VuTVu - Vu TVu-- 3842 Vu 9456356 T VuVu11610 TT -- 8838 T Vu10754 T 8834 - 8779 T Vu8082 T Vu - -9256 T Vu 10466 T T Vu7719 T T 7755 Vu 9265 TT Vu - 8516 Vu -- VuT10918 M o n t iero TT Vu13271Vu7647 - - 9257 8262 T VuVu- 7971 14633 -6641 13388 T Vu 8059 Vu - 14632 T Vu 9357 - - - 7739 T Vu - T VuT - 16574 T Vu - 16521 T Vu - 15913 T Vu14856 T Vu- 946 T Vu - - 14635 N d iam bMu r g n e o ou T VuVu -- 5444 T Vu 10394 T - 5443 T Vu - 15945- 15926 T Vu T Vu - 15742 - 15982 T Vu IT 97K - 1069- 26 C C - 27 36 CC- T Vu - 14195 T Vu - 14172 - Vu - 14190 T VuT13950 IT 96D - 602 IT 98K - 1263 1 IT 98K - 555- IT 97K - 556- 99K - 407- 8 IT 6 IT 95K - 1105- 5 IT 00K - 1207 IT T T Vu16722 T Vu - -D - 288 IT 89K 16722 K Vx 403- P- 20- 93K - 503- 1 IT 03K - 351- 1 IT 98KIT 98K -- 428- 3 IT 98K - 698- 2 428- 2IT 97K -IT 03K -1- 1 9 - 573- 2- 1 461- 4- -IT 99K IT 90K 324- 2 284- IT 97K - 569- 9 IT 95K - 1093- 5 IT 95K - -- 16505 T Vu 207- 15 IT 98K - 1092- 2 1090- 2 98K -84S-2 21 IT 95K - IT IT 95K - 207- IT Vu 16504 T 128- 4 2246 TTT Vu4622 VuT - - 374 U CVu41 C C - 110- 1 Vu R 109 U 6365 - 16408 - 12937 T VuC R 1340 - 456 T VuVu- 393 T Vu 1000 T Vu - - 4632 T - 10167155 T -T Vu13939 - 14224 759 T Vu -- U C R -1536 T Vu 8673 - 2563 14759 1775 T Vu T Vu Vu - 15973 T 415 Vu - T Vu 58- 77 T Vu -a Prim 8 T Vu - 113 Vu - 3310 T Vu -T Vu - 1637 T 13485 T Vu - 1583 T Vu - 15653 UVu T Vu -- 467 11 3565 T C RT Vu - 14769 T Vu - 972 B 22- Valen g- 6837 Vu a- T Vu - 6663 -TT VuT132- 9234 TVu - 15391 Vu - 15114 -T Vu - 15143 T vT Vu - 6477 T Vu - IT 86F 2014- 1Vu 16430 u - 7778 T VuT15112 T Vu - 9469 T T Vu - 15112 T Vu VuC R- 201 - 12432 5 U Vu 16594 T Vu Vu - T Vu T 15445IT 04K - 405- T Vu-T- 9848 - 43 5329 9801 T - 1280 v IT 83D Vu - 9866 u- 14535 U C R -288 T Vu - 14533 442 T IT 85F - 867- 5 T Vu - 8464 T VuT Vu - 15487 T Vu - 2548- 1 - 100413437 T Vu - 2548 T Vu - 2680 lay IroT Vu - 2769 n C T Vu - 8464 TT Vu - 13035u301 T Vu - 6855 Vu - B T v - 14676 T Vu - 4316 T Vu - 3360 C R 3399 - 2933T Vu - 1780 T Vu T Vu -15468 14683 T Vu -13463 T Vu -T Vu - Vu - 14691 1334 15400 TT T Vu - 1477Vu - 2736 UT T Vu - 84 T Vu - 10910 Vu- Vu - 14321 T VuIT- 1036 Vu - 1330 UTVu-739 - 14321 T -Vu 15426 T T VuT 15411 T T Vu -T Vu - 7684 - 10179 T Vu - Vu -86D589-- 1122Vu - 14890 2185 - 3652 - 1059 T Vu T Vu IT IT 99K 2 T- 1037 - 264 18T 10100 - - 1010 Vu Vu 82E- T Vu98K - 1609 IT6439 C R 13305 T T Vu 12746 T Vu T Vu --UVu - 159761013778 -T Vu T C R 830Vu - 10366 T 14621 93K - 93- IT T Vu - 6464 Vit a 7 T Vu - 3552 - 7127 Vu - 15995 T Vu U C R 707 T 0 0.1 Blue–UCR Green – IITA Breeding line Black – accession or land lace Genetic diversity map Pink– Senegal Red– Burkina Faso www.iita.org
  23. 23. PRELIMINARY FINDINGS Minimum MaximumFirst flower (d) 26 10050% Flowering (d) 35 11995% Maturity (d) 57 142Grain Yield (g/plt) 0 270Fodder Yield (g/plt) 1.3 850 www.iita.org
  24. 24. Number entries for each maturity group900 836800700600 521 525500400300200100 41 0 Extra Early Early Medium Late www.iita.org
  25. 25. Number of disease free accessions2000 1791180016001400 1251 126912001000 800 600 400 200 82 90 0 Striga Fusarium Smut Bacterial Virus blight www.iita.org
  26. 26. SEGREGATING POPULATIONS• Parental germplasm selection• About 200 crosses and backcrosses annually• Management of segregating population – 323 in 2007 – 226 in 2008 – 477 in 2009 www.iita.org
  27. 27. INITIAL EVALUATION TRIAL• F6-F7 group according to maturity, seed type• About 50 lines annually into extra early, early, medium and late – 155 lines in 2007 – 320 lines in 2008 – 165 lines in 2009 www.iita.org
  28. 28. • Evaluated in single replication in 3 locations – Samaru in the NGS (1000 mm) – Minjibir in the SS (700 mm) – Toumnia in the S (350 mm) www.iita.org
  29. 29. PRELIMINARY VARIETAL TRIALS• Promising lines from IETs: – Extra-early, Early, Medium and Late• 40 lines each• 3-4 replications in 4 locations: Ibadan in the transition zone (1500mm) www.iita.org
  30. 30. Number of entries in PVT 2007- 2009Trials 2007 2008 2009Early 16 60 25Medium 36 60 65Late 36 70 60Total 88 190 150 www.iita.org
  31. 31. ADVANCED VARIETAL TRIAL• Promising lines from PVT: – Extra-early, Early, Medium and Late• 25 lines each• 3-4 replications in 4 locations: Ibadan, Samaru, Minjibir and Toumnia www.iita.org
  32. 32. Number of entries in AVT from 2007-2009Trials 2007 2008 2009Extra early 20 25 20Early 20 25 20Medium 25 20 20Late/dual 25 25 25purposeTotal 90 85 85 www.iita.org
  33. 33. Mean Grain Yield of extra early promising cowpea breeding lines in four locationsVariety Minjibir Samaru Ibadan Toumnia MeanIT06K-135 1761 1782 735 1938 1554.0IT07K-187-72 1525 1718 1476 1266 1496.3IT07K-188-49 1429 1426 1110 1732 1424.3IT06K-134 1680 1327 999 1516 1380.5IT06K-157-1 1858 1334 780 1364 1334.0IT96D-610 1203 1572 796 1749 1330.0IT07K-303-1 1607 829 1044 1766 1311.5Achishiru 941 1083 549 543 779.0Mean 1263 1096.0 808.0 1229.0SED 327.700 404.200 159.500 293.600 www.iita.org
  34. 34. Performance of extra early promising breeding lines evaluated at Toumnia, 2008Variety Grain Fodder D95%PM Virus B.Bli Smut Striga MarucaIT06K-135 1938 2505 69 2 2 2 21 1IT07K-187-72 1266 3674 77 2 1 1 13 1IT07K-188-49 1732 2561 67 2 2 2 12 2IT06K-134 1516 3062 67 2 2 2 7 2IT06K-157-1 1364 2672 63 2 2 1 11 2IT96D-610 1749 2505 69 2 2 4 13 2IT07K-303-1 1766 3117 74 2 2 2 26 1Achishiru 543 1392 63 2 2 2 13 1Mean 1229.0 2768.0 70.1 1.9 1.8 1.7 11.6 1.4SED 293.6 723.0 4.0 0.5 0.4 0.4 7.7 0.5 www.iita.org
  35. 35. Performance of extra early promising lines evaluated at Samaru 2008Variety Grain D95%PM Virus B.Bli B.blo Sept Lscab Pscab Lrust stemrot Thr.IT06K-135 1782 68 1 2 1 1 1 5 1 1 2IT07K-187-72 1718 68 1 1 2 2 1 3 2 1 2IT07K-188-49 1426 69 1 2 2 2 2 4 1 1 3IT06K-134 1327 68 1 2 2 2 2 4 1 1 3IT06K-157-1 1334 65 1 2 1 1 2 4 1 1 2IT96D-610 1572 66 1 2 2 2 1 1 1 1 12IT07K-303-1 829 71 2 2 1 1 2 3 1 1 3Achishiru 1083 60 1 2 2 2 1 4 1 2 3Mean 1096.0 67.3 1.2 1.5 1.5 1.5 1.8 2.9 1.3 1.2 3.0SED 404.2 1.8 0.6 0.5 0.6 0.5 0.6 0.4 0.5 0.4 2.8 www.iita.org
  36. 36. Mean Grain Yield of early promising cowpea breeding lines at four locations 2008Variety Minjibir Samaru Ibadan Toumnia MeanIT07K-303-6 1432 1811 1115 1493 1463IT06K-118-1 1768 1446 754 1487 1364IT04K-332-1 1741 1034 618 2033 1357IT04K-333-2 1533 1264 848 1730 1344IT06K-124 1379 1555 875 1554 1341IT06K-136 1744 1177 755 1672 1337IT98K-573-1-1 1486 1338 843 1642 1327Aloka Local 723 1180 805 1952 1165Mean 1336.0 1198.0 748.0 1451.0SED 281.3 357.0 178.1 324.3 www.iita.org
  37. 37. Grain yield of medium maturing cowpea breeding Lines evaluated at four locations 2008Variety Minjibir Samaru Ibadan Toumnia MeanIT06K-149-1 2210 1555 856 1727 1587IT07K-292-66 2002 1305 1401 1628 1584IT03K-378-4 1736 873 1314 2010 1483IT90K-277-2 1923 1061 1043 1792 1455IT06K-273 1897 639 1297 1729 1391IT06K-147-2 1820 771 1039 1903 1383IT04K-221-1 2282 701 791 1542 1329IT06K-128 1831 743 849 1810 1308Danila 766 571 947 1204 872Mean 1564.0 896.0 946.0 1592.0 1249.5SED 291.3 199.4 161.5 223.6 www.iita.org
  38. 38. Grain Yield of promising late maturing Cowpea breeding lines at 4 locations in 2008Variety Minjibir Samaru Ibadan Toumnia MeanIT06K-139 2313 1203 852 1589 1489IT98K-409-4 1859 1653 733 1667 1478IT06K-116 1582 1135 1028 2064 1452IT06K-111-1 1971 938 928 1610 1362IT06K-264-2 1353 1135 1017 1873 1345IT04K-321-2 1587 857 836 1965 1311IT07K-297-15 1759 1081 685 1682 1302IT06K-111 1463 1159 799 1650 1268Kanannado 0 1013 737 0 438Mean 1338.0 1024.0 874.0 1355.0 1147.8SED 465.7 212 205.4 338.9 www.iita.org
  39. 39. Performance of promising late maturing Breeding lines at Toumnia 2008Variety Grain Fod D50%Fl Viru B.Bli StrigIT06K-139 1589 2923 49 2 3 33IT98K-409-4 1667 2227 45 2 2 2IT06K-116 2064 3674 45 2 3 18IT06K-111-1 1610 2394 43 2 2 10IT06K-264-2 1873 3451 45 2 3 7IT04K-321-2 1965 3451 54 2 3 1IT07K-297-15 1682 2060 39 3 3 0IT06K-111 1650 1865 41 2 3 6Kanannado 0 3340 51 2 4 48Mean 1355.0 2990.0 51.3 1.8 2.3 31.0SED 338.9 1147 2.672 0.64 0.75 17.3 www.iita.org
  40. 40. Performance of promising late maturing Breeding lines at Samaru 2008Variety Grain Fodder B.Bli Sept Lscab Pscab Lrust Alec MarIT06K-139 1203 696 1 3 1 2 1 0 2IT98K-409-4 1653 1058 3 1 1 1 1 0 2IT06K-116 1135 529 1 3 5 4 1 0 2IT06K-111-1 938 362 2 4 5 4 1 4 3IT06K-264-2 1135 501 1 5 2 2 1 0 2IT04K-321-2 857 501 3 1 4 3 1 0 207K-297-15 1081 557 4 1 5 4 3 0 3IT06K-111 1159 557 1 3 5 4 1 1 3Kanannado 1013 223 2 2 2 2 2 1 2Mean 1024.0 443.0 1.5 3.5 3.1 2.6 1.4 0.4 2.4SED 212 204.7 0.47 0.26 0.698 0.52 0.63 0.81 0.65 www.iita.org
  41. 41. Performance of promising late maturing Breeding lines at Minjibir 2008Variety Grain Fodde D50%F D95%PM Viru Bbli Smu Stri MarIT06K-139 2313 5316 51 83 2 1 4 4 5IT98K-409-4 1859 4648 48 82 2 1 2 0 4IT06K-116 1582 5622 44 80 2 1 4 1 4IT06K-111-1 1971 5260 39 74 2 1 4 1 3IT06K-264-2 1353 6903 46 80 2 1 4 1 4IT04K-321-2 1587 5901 57 86 2 1 5 0 407K-297-15 1759 1559 39 66 2 2 4 0 2IT06K-111 1463 5845 41 74 2 1 3 0 3Kanannado 0 5344 53 85 3 1 4 0 5Mean 1338 5534.0 52.7 84.9 1.9 1.1 3.6 1.6 4.3SED 465.7 816 1.658 1.436 0.41 0.3 0.45 1.41 0.43 www.iita.org
  42. 42. Performance of promising late maturing Breeding lines at Ibadan 2008Variety Grain Fodder D50%Fl Bbli CercosIT06K-139 852 1169 45 1 1IT98K-409-4 733 1169 50 1 1IT06K-116 1028 1002 48 3 1IT06K-111-1 928 1086 45 2 1IT06K-264-2 1017 1169 45 2 3IT04K-321-2 836 919 45 2 207K-297-15 685 1002 42 1 5IT06K-111 799 1086 46 2 1Kanannado 737 1754 51 1 1Mean 874.0 1286.0 46.5 1.5 1.5SED 205.4 278 1.41 0.673 0.3808 www.iita.org
  43. 43. COWPEA INTERNATIONAL TRIALS• Promising lines from AVT: – Extra-early, Early, Medium and Late• 15-20 lines each• Sets distributed to collaborators (NARS and ARI) www.iita.org
  44. 44. Number of entries in CIT from 2007-2009Trials 2007 2008 2009CIT 1 15 15 15CIT 2 15 15 20CIT 3 12 10 20CIT 4 12 10CIT 5 10 10Total 64 60 55 www.iita.org
  45. 45. COWPEA BREEDING PROJECTS www.iita.org
  46. 46. TROPICAL LEGUME II• Objective 3: Enhancing cowpea productivity and production in drought prone areas in Sub-Saharan Africa www.iita.org
  47. 47. Activity 3.1: Test existing cowpealines for their drought tolerance• Milestone 3.1.1Fifty elite cowpea lines with resistance to aphids, flower thrips, and some Striga strains are evaluated for adaptation to drought.• Two sub-activities were conducted www.iita.org
  48. 48. Best performing drought tolerant lines 1st planting date 2nd planting dateVariety Grain Yield Variety Grain YieldIT98K-491-4 1485 IT98K-491-4 953IT98K-412-13 1213 IT98K-412-13 609IT99K-216-24-2 1151 IT99K-1122 609IT99K-1122 1130 IT99K-7-21-2-2 603IT98K-311-8-2 997 IT99K-216-24-2 597IT99K-7-21-2-2 966 IT98K-628 586IT97K-1069-6 961 IT96D-610 471IT96D-610 929 IT97K-1069-6 449IT00K-1263 922 IT00K-1263 426Mean 935 IT97K-390-2 417SED 2.92 Mean 472 SED 87.5 www.iita.org
  49. 49. High fodder yielding lines under drought Fodder Yield • Farmers in droughtVariety (kg/ha) prone areasIT98K-412-13 1058 interested with dualIT99K-573-2-1 946 purpose cowpea, i.e.:IT99K-573-1-1 891IT98K-1092-2 835 •IT98K-491-4IT04K-405-5 835IT98K-491-4 752 •IT98K-412-13IT99K-1122 752IT98K-1092-1 752Mean 564SED 144.9 www.iita.org
  50. 50. • No significant differences for bacterial blight and virus incidence and severity under terminal drought conditions.• For the 1st planting date, significant difference for virus incidence and severity but not for bacterial blight. However, no line with high susceptibility identified.• For both dates, only the following lines did not show striga emergence: IT99K-573-1-1, IT99K- 1122, IT99K-494-6, IT04-227-4, IT00K-1207, IT97K-819-118 and IT99K-529-2. www.iita.org
  51. 51. FPVS sub-activity Locations GenderDate LGA Village Male Female Total30/10/08 Tofa Tofa 28 0 2829/10/08 Gezawa Gezawa 40 0 4028/10/08 Bichi Badume 16 18 3431/10/08 Minjibir Minjibir/Wasai 27 15 42 111 33 144• Farmers were requested to select 3 lines in each replication• Lines selected and reason for selecting these lines were recorded www.iita.org
  52. 52. RESULTS• All the 16 lines were selected at least once in each replication except IT97K-819-118 which was not selected in Rep 2.• The high grain yielding lines IT98K-491-4 (1485 kg/ha), IT98K-412-13 (1213 kg/ha) and IT99K-216-24-2 (1151 kg/ha) were selected by 118 (82 %), 132 (92%) and 131(91%) farmers respectively• The lines IT98K-166-4 (443kg/ha) and IT97K-819-118 (443 kg/ha) with the lowest grain yield had the smallest number of selection 16 (11%) and 20 (14%). www.iita.org
  53. 53. Farmers % Farmers selecting inVariety # % 3 rep 2rep 1 rep YIELDIT99K-216-24-2 131 91 25.7 37.5 27.8 1151IT98K-412-13 132 91.7 25.7 34 31.9 1213IT99K-7-21-2-2 128 88.9 17.4 31.3 40.3 966IT98K-491-4 118 81.9 11.1 38.9 31.9 1485IT98K-128-3 110 76.4 16.7 27.8 31.9 870IT89KD-288 102 70.8 11.8 25.7 33.3 756IT99K-529-2 92 63.9 11.8 29.9 22.2 713IT00K-1263 68 47.2 4.17 10.4 32.6 922IT98K-628 74 51.4 2.08 9.03 40.3 803IT98K-166-4 16 11.1 0 1.39 9.72 702IT98K-311-8-2 63 43.8 2.78 11.1 29.9 997IT97K-390-2 58 40.3 2.08 14.6 23.6 804IT96D-610 55 38.2 4.17 11.8 22.2 929IT97K-1069-6 58 40.3 1.39 10.4 28.5 961IT99K-1122 54 37.5 2.08 9.03 26.4 1130IT97K-819-118 20 13.9 0.69 0.69 12.5 558 www.iita.org
  54. 54. First Reason to select a varietyCHARACTERISTICS Number of farmers PercentageGrain yield 76 52%Color +other physical 10 8%Fodder yield 9 6%Taste 7 5%Dual purpose 4 3%Early 4 3%Tolerance to drought 3 2%Striga+other pest 3 2%Other 28 19%Total 144 100% www.iita.org
  55. 55. FUTURE BREEDING ACTIVITIES www.iita.org
  56. 56. PROPOSED BREEDING PROGRAM FOR THE NEXT 2 TO 3 YEARS• Target traits – Insect resistance: • Aphid (Aphis craccivora) • Flower bud thrips (Megalurothrips sjostedti) – Disease resistance: • Virus www.iita.org
  57. 57. – Parasitic weeds • Striga resistance • Alectra resistance– Drought tolerance • TL II • TL I (phase 2?)– Specific breeding • Breeding for intercropping www.iita.org
  58. 58. OUTLINE OF RESEARCH ACTIVITIES• Germplasm Characterization• Identification and Validation of sources of resistance• Crossing Nursery and generation advancement• Multi location variety trials• Seed multiplication• Cowpea international trials. www.iita.org
  59. 59. CONCLUSION• Cowpea has numerous biotic and abiotic production constraints• Some progress has been achieved• Future program will focus on identified target traits• Program approach designed to contribute to IITA’s mission www.iita.org
  60. 60. Acknowledgement• IITA Management • Mr. E. Makeri and CBU staff• Dr. D. Chikoye• Dr. C. Fatokun • Mr. R. Adeleke and staff• Colleagues from Kano • Colleagues from NARS and ARI www.iita.org
  61. 61. www.iita.org

×